Spring hinge



Feb. 3, 1925.

W. J. KEENE SPRING HINGE Filed April 21, 1924 fine/Z357@ mm J Patented Feb. 3, 1925.

Unire-- STATES renee? PATENT raies.

WILLIAIVL J'. KEENE, OF. CHICAGO, ILLINOIS, ASS[Gl\TOR T-O CHICAGO SPRING HINGE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SPRING HINGE.

Application led April 21, 1924. Serial No. 707,823;

T all whom t may concer/1t.'

Be it known that I, IVILLiAM- J'. KEENE, a citizen of the United States, and a resident of Chicago, county of Cook, and StateL of Illinois, have inventedr certain new and useful Improvements in Spring Hinges, of which the following is a specification.

My invention relates to hinges and has reference more particularly to hinges ofthe double`-acting type.

The principal objects of my invention are to permit double-acting spring hinges to be mounted directly on the door jamb orother support without requiring a jamb strip or filler block; to construct they hinge so that a center of standard form may be used, thus obviating the necessity of making up a special center and also avoiding weakness which would result if the center were formed with odset A portions; to relieve strain on the center by providing an abutment against which the free end of the center engages when the door swings on that end of the center; and in general, to

adapt the present standard types of double acting spring hinges for mounting directly on the door amb or other support, without a jamb strip or filler block, by simple changesv in the jamb leaf and door leaf which serve to increase the strength of the hinge.

On the drawings:V

Fig. 1 is a top view of a hinge constructed Vin accordance with my invention, together with fragmentary portions of the door and door jamb, and shows the door in the closed or central position;

Fig. 2, a similar view showing swung to the right;

Fig. 3, a similar v'iew showing the door swung to the left;

Fig. 4, a rear view of the door leaf and fragmentary portion of the center; and

Fig. 5, a view, partially in section, taken on the line 5 of Fig. 2.

Referring to the drawings, the reference numeral 1 indicates a hinge center which may be of any standard type, for example, as shown and described in my Patent No. 918,882, dated April 27, 1909, said center being of elongated form and provided with tubular barrels 2 and 3 respectively along the lateral edges. Each barrel has a plug 4 secured in the upper end by riveting or in any other convenient manner to prevent the door spring relative turning movement ofthe barrel and plug and has a reduced extension 5 which is encircled by the upper end of a spring` 6 and provided with a notch 7 in the side toY interlock with the inturned end 8Y of the spring. Each barrel also has a plug 9 litted to turn in the lower end thereof, a bushing 10 being preferably interposed between the barrel and plug, and this plug likewise has a reducedv extension 11 in the barrel which is encircled by the lower end of the springt and provided with. a notch 12. to interlock `with the inturned lower end 13 of the rbetween the head 15 of the pin and the upper plug 4, while the lower ear 18 is interposed between the nut or removable head 16 and the plugj 9. The plug 9 is provided at intervals therearound with radial holes or seats 19 for a pin 2O which is adapted to engage the edge of the jamb leat` 17 as shown in Fig. 2. In practice, the plug 9 is turned by means of a suitable tool until the spring G is pla-ced under the desiredv tension, after which the pin 20 is inserted in the proper hole 19 to engage the plate 17 and maintain the spring tension which serves to swing the center inwardly to a position parallel with the jamb leaf 17 as shown in Fig. 1.

The door plate, which is indicated at 21, is formed with the wings or flanges 22, bent laterally at the upper and lower ends, which embrace the center 1 therebetween and are of suitable width to extend to the surface of the door jamb 23 when the door leaf 21 lies against the outer surface of the center 1, as shown in Fig. 1. These wings or flanges 22 are extended beyond the plate 21 and are offset outwardly as shown in Figs. 1 and 2, to form ears 24 at the corresponding ends whereby the door leaf is hinged to the free end of the center 1. These ears are rel 3 and the upper ear is interposed between the head 15 of said pin and the plug l and the lower ear between the nut or removable head 16 and the plug 9. This plug 9 in the barrel 3 is the same as the correspondingly numbered plug in the other barrel 2 and has the radial holes or seats to receive the pin 25 which engages the outturned edge 2G of the door leaf 21 and holds the spring G in said barrel under a suitable tension for swinging the door leaf inwardly against the outer face of the center 1.

The jamb leaf 17 is secured directly to the surface of the j amb or other support 23 as shown by screws 27 and does not require any jamb strip or filler block as is the case of the usual forms of double-acting hinges, and the door which is shown at 23 is notched to a depth equal to the width of the flanges or wings 22 to receive the door leaf 21 therein, as shown by dotted lines in Figs. l and 2. so that the rear edge of the door comes close against the face of the jamb 23, as shown in Fig. 1, when the door is in the center position. The door leaf 21 is provided with a. number of countersunk screw holes in the usual manner to receive the screws 29 for fastening the door leaf to the door.

In double-acting hinges, the hinge center is subjected to considerable strain, particularly when the door is swung on the pivot at the free end of the center, owing to the factthat this pivot must be spaced a distance greater than the thickness of the door from the fixed pivot-that is, the pivotal axis of `the center and jamb leaf. F or the purpose of relieving this strain, I have extended the jamb leaf 17 as shown so that it projects under the barrel 3 to form an abutshown in Fig 3, brings the barrel 3 against the plate 17 and the latter serves as a brace to avoid strain which is ordinarily imposed upon the center. It will be noted there is no turning movement of the barrel 3 `as the door is swung to the position of Fig. 3, and that therefore there is no rubbing act-ion between the barrel and plate 17 and the engagement thereof does not interfere with the freedom of movement of the hinge.

IVhile I have shown and described my invention in a preferred form, I am aware that various changes and modifications may be made without departing from the principles of my invention, the scope of which is to be determined by the appended claims.

I claim as my invention:

1. In a double-acting spring hinge, the combination of a center comprising a pair of spaced parallel barrels connected by a web lying substantially in the plane of the axes of the barrels, a jamb leaf pivoted to one barrel and providing an abutment for the other barrel to hold the web of the center away from the jamb leaf, and a door leaf pivoted to the last mentioned barrel so as to swing to a position between the barrels and adjacent the outer face of the web, said door leaf having flanges at the ends straddling the web and the jamb leaf.

2. In a double-acting spring hinge, the combination of a jamb leaf and door leaf and a center webinterposed between the leaves, said ia-.mb leaf and door leaf being pivoted at opposite sides of the center web, with the pivots substantially in line with the center web, a spring at each pivot, said j amb leaf having an attaching face lying in a plane at one side of the springs, and interengaging means affording Contact between the jamb leaf and a relatively movable portion of the hinge whereby the attaching face of the jambleaf is held in said plane at one side of the Springs.

3. Ina double-acting spring hinge, the combination of a center comprising ay pair of spaced parallel barrels connected by a web lying substantially in the plane of the axes of the bearings; a door leaf having a pivotal connection with one of the barrels and a jamb leaf hinged to the other barrel, said jamb leaf being extended to form a fulcrum for the aforesaid pivotal connection when the door leaf is swung away from the center.

IVILLIAM J. KEENE. 

